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S31730 Stainless Steel vs. S42010 Stainless Steel

Both S31730 stainless steel and S42010 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is S42010 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
18
Fatigue Strength, MPa 170
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 370
370
Tensile Strength: Ultimate (UTS), MPa 540
590
Tensile Strength: Yield (Proof), MPa 200
350

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
800
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
8.5
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.6
2.2
Embodied Energy, MJ/kg 63
30
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 30
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
95
Resilience: Unit (Modulus of Resilience), kJ/m3 99
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 18
20
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.15 to 0.3
Chromium (Cr), % 17 to 19
13.5 to 15
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 52.4 to 61
80.9 to 85.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0.4 to 0.85
Nickel (Ni), % 15 to 16.5
0.35 to 0.85
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030